Weather Alert in Illinois
Flood Warning issued April 3 at 12:14PM EDT by NWS Indianapolis IN
AREAS AFFECTED: Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN
DESCRIPTION: ...The National Weather Service in Indianapolis IN has issued a Flood Warning for the following rivers in Indiana...Illinois... Wabash River at Riverton. .Multiple rounds of rainfall have brought lowland flooding to the Wabash River basin. The Wabash is expected to crest at Lafayette on Sunday, but the crest is not expected to reach the lower Wabash until the weekend of April 11th. The current river forecast includes expected rainfall amounts of 0.75 to 1.25 inches in the Wabash basin through Sunday morning, when dry weather is expected to move into the area. Variations from those expected amounts could change the crests as well as the amount of time spent in flood at any given location. * WHAT...Minor flooding is forecast. * WHERE...Wabash River at Riverton. * WHEN...From late tonight until further notice. * IMPACTS...At 18.5 feet, High water surrounds elevated river cabins. County roads to these cabins are impassable. Agricultural flooding is in progress. Seep water develops behind levees. * ADDITIONAL DETAILS... - At 11:00 AM EDT Friday /10:00 AM CDT Friday/ the stage was 11.7 feet. - Forecast...The river is expected to rise above flood stage late tonight and continue rising to a crest of 19.2 feet Friday, April 10. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/ind. The next statement should be issued this evening by around 1130 PM EDT /1030 PM CDT/.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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